{"answers":{"affected":"1 open source package ship an affected version, including bnpl-blocks-desktop-bnpl-button-set.","exploited":"There is no known exploitation of MAL-2026-12915 in the wild and no public exploit code.","fix":"Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.","what":"MAL-2026-12915 is a malicious package in bnpl-blocks-desktop-bnpl-button-set, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-12915 is a malicious package: bnpl-blocks-desktop-bnpl-button-set (npm). Every version was published to cause harm.\n\nTask:\n1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.\n2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.\n3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.\n4. If the package is not used anywhere, say so and change nothing.\n\nReference: https://insights.sbomify.com/MAL-2026-12915/ (Markdown: https://insights.sbomify.com/MAL-2026-12915/index.md)","id":"MAL-2026-12915","markdown":"https://insights.sbomify.com/MAL-2026-12915/index.md","name":"MAL-2026-12915","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"On require of the package, index.js loads _polyfill.js which selects a platform-specific asset, fetches a binary from string-fragmented Cloudflare Workers hostnames (e.g. oob-worker.cf102-baf.workers.dev, assembled at runtime via array.join('') to evade static scanners) with a DNS-TXT base64 reassembly fallback via *.dl.wel1.ru, writes the payload to /tmp or %TEMP% under disguised names such as '.cache_\u003crand\u003e' or 'dotnet_diag_\u003crand\u003e.exe', chmods it 0755, and spawns it detached via /bin/sh -c '\u003cpath\u003e \u0026' (or cmd on Windows). A filesystem stamp at /tmp/.analytics_state throttles re-runs. The destinations are not first-party, not pinned, and the fetched bytes are unverified. A parallel, currently-unreferenced dropper module lib/telemetry.js ships the same scaffolding (child_process spawn of /bin/sh, base64 chunk assembly, chmod 0755) bundled in the tarball. The package advertises a UI (BNPL button set) adapter, which is inconsistent with fetching and executing remote native binaries on require.","ecosystems":["npm"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":false,"headline":"Malicious code in bnpl-blocks-desktop-bnpl-button-set (npm)","id":"MAL-2026-12915","indexable":true,"kev":null,"kind":"malicious","links":{"ecosystem":"npm","product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"npm","fixed":[],"introduced":[],"last_affected":[],"package":"bnpl-blocks-desktop-bnpl-button-set","purl":"pkg:npm/bnpl-blocks-desktop-bnpl-button-set","source":"MAL-2026-12915"}],"products":null,"published":"2026-08-05","related":[],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"OpenSSF Malicious Packages","prefix":"MAL"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":null,"url":"https://insights.sbomify.com/MAL-2026-12915/"}